package demo2;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 28779
 * Date: 2023-03-28
 * Time: 10:25
 */
public class Computer {
    public void powerOn() {
        System.out.println("打开笔记本电脑");
    }

    public void powerOff() {
        System.out.println("关闭笔记本电脑");
    }

    public void usbDevice(USB usb){
        usb.openDevice();
        if(usb instanceof KeyBoard){
            KeyBoard keyBoard = (KeyBoard) usb;
            keyBoard.inPut();
        }else if(usb instanceof Mouse){
            Mouse mouse = (Mouse) usb;
            mouse.click();
        }
        usb.closeDevice();
    }


}